Spiral binder



G: L. SMITH SPIRAL BINDER Aug. 16,4 193s.

Filed July 8,' 1935 //1/ l/E/l/ 7 0,9 v @f7-@0.9- z. JW/TM .5f 7% /Vrrx Patented Aug. 16, 1938 UNITED STATES PATENT OFFICE 1 Claim.

My invention relates t a spiral binder particularly of the type employing a helical binding element of wire or the like and which passes through perforations in sheets of paper to hold the same in assembled relation and the p-rincipal object of my invention is, to provide simple and effective means for connecting the helical binding element to a holder, preferably a pair of covers that are connected by a flexible back.

Further objects of my invention are, to provide a binder of the character referred to wherein the helical member that serves as a binding for a number of sheets of paper or the like may be detachably secured to a rail or binding strip that is applied to the ilexible back of the holder.

As a result of my improved construction a number of sheets of paper or the like may be conveniently held in assembled relation by the helical binding element and 'the latter may be detachably connected to the back member of a convenient holder that includes a pair of covers for the sheets of paper carried by the helical member.

With the foregoing and other objects in view my invention consists in certain novel features of construction and arrangements of parts that Will be hereinafter more fully described and claimed and illustrated in the accompanying drawing in which:

Fig. 1 is a plan View of an open holder and showing the helical binding element detachably connected to the flexible back of the holder.

Fig. 2 is a vertical section taken on the line 2-2 of Fig. 1.

Fig. 3 is a longitudinal section taken on the line 3-3 of Fig. 1.

Referring by numerals to the accompanying drawing which illustrates a preferred embodiment of my invention, Ill, l0 designates cover members which may be formed of any suitable material and said members being connected in conventional manner by a back member II, preferably of flexible or seminexible construction.

The leaves or sheets of paper I2 that are held in assembled relation by the binder, are provided along one edge with rows of perforations such as I3 and threaded through the perforations of one or more assembled sheets are the convolutions of a helical binding member I4, preferably of Wire having a certain degree of resiliency.

In order to detachably connect the helical binding member to the back of the holder, a narrow strip I 5, preferably of metal, has one or both ends detachably connected to the inner face of the backing member II.

In Fig. 1 I have shown one end of this retaining member permanently secured to the backing member by means of a rivet I6 andthe other end is provided with a socket I1 that receives the stud member I8 of a conventional snap fastener. The base of stud member I8 is seated in the back II.

Obviously other convenient means may be employed for detachably connecting one or both ends of the retaining member I5 to the back II or if it is desired to provide a permanent binding for the sheets of paper carried by the helical binding member I4, both ends of the retaining member I5 may be permanently secured to the back.

The strip or retaining member I5 provides simple and convenient means for connecting the helical binding member I4 to the holder and as the supporting strip extends entirely through the helical member it affords a much more substantial support than if said helical member were attached only a't its end to the back II of the holder.

In some instances and particularly where large sizes of the binder are provided two retaining strips such as I5 may be utilized for attaching the helical member to the back.

My improved spiral binding is especially advantageous wherever it is necessary or desirable to hold a number of sheets of paper or cards in convenient assembled relation Within a holder, for instance, stenographers note books, temporary or permanent record books, scrap books, or in fact any sheets or cards that may be assembled in book form,

Thus it will be seen that I have provided a spiral binder that is relatively simple in construction, inexpensive of manufacture and very effective in performing the functions for which it is intended.

It will be understood that minor changes in the size, form and construction of the various parts of my improved construction may be made and substituted for those herein shown and described Without departing from the spirit of my invention, the scope of which is set forth in the appended claim.

I claim as my invention:

In a binder, the combination with a holder, of a helical sheet engaging member, a rod extending lengthwise through said helical member, one end of which rod is permanently secured to the holder, a socket formed on the other end of said rod and a stud seated in the holder for engaging in the socket on the end of said rod whereby one end of said rod is detachably connected to the holder.

GERTRUDE L. SMITH. 

